GB948909A - Improvements in or relating to nuclear reactors - Google Patents

Improvements in or relating to nuclear reactors

Info

Publication number
GB948909A
GB948909A GB21221/59A GB2122159A GB948909A GB 948909 A GB948909 A GB 948909A GB 21221/59 A GB21221/59 A GB 21221/59A GB 2122159 A GB2122159 A GB 2122159A GB 948909 A GB948909 A GB 948909A
Authority
GB
United Kingdom
Prior art keywords
tubes
magnesium
blocks
lead
light water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB21221/59A
Inventor
Stefan George Bauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB21221/59A priority Critical patent/GB948909A/en
Priority to US36371A priority patent/US3146172A/en
Publication of GB948909A publication Critical patent/GB948909A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C1/00—Reactor types
    • G21C1/04—Thermal reactors ; Epithermal reactors
    • G21C1/06—Heterogeneous reactors, i.e. in which fuel and moderator are separated
    • G21C1/14—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being substantially not pressurised, e.g. swimming-pool reactor
    • G21C1/16—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being substantially not pressurised, e.g. swimming-pool reactor moderator and coolant being different or separated, e.g. sodium-graphite reactor, sodium-heavy water reactor or organic coolant-heavy water reactor
    • G21C1/18—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being substantially not pressurised, e.g. swimming-pool reactor moderator and coolant being different or separated, e.g. sodium-graphite reactor, sodium-heavy water reactor or organic coolant-heavy water reactor coolant being pressurised
    • G21C1/20—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being substantially not pressurised, e.g. swimming-pool reactor moderator and coolant being different or separated, e.g. sodium-graphite reactor, sodium-heavy water reactor or organic coolant-heavy water reactor coolant being pressurised moderator being liquid, e.g. pressure-tube reactor
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
    • G21C15/20—Partitions or thermal insulation between fuel channel and moderator
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/12—Moderator or core structure; Selection of materials for use as moderator characterised by composition, e.g. the moderator containing additional substances which ensure improved heat resistance of the moderator
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/005—Flux flattening
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/26—Control of nuclear reaction by displacement of the moderator or parts thereof by changing the moderator concentration
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S376/00—Induced nuclear reactions: processes, systems, and elements
    • Y10S376/90—Particular material or material shapes for fission reactors
    • Y10S376/904—Moderator, reflector, or coolant materials
    • Y10S376/906—Metal

Abstract

948,909. Nuclear fuel elements. ROLLSROYCE Ltd. June 13, 1960 [ June 19, 1959; Dec. 11, 1959], Nos. 21221/59 and 42312/59. Heading G6C. In a nuclear reactor core, the moderator comprises light water together with either lead or magnesium. As shown, the fuel rods 310 mounted in stainless steel tubes 311 are surrounded by double walled magnesium tubes 312 in which the interwall space 312a is fitted with magnesium oxide. An aluminium tube 313 surrounds tube 312 and certain of the tubes 313 are surrounded by aluminium tubes 314, longitudinally fluted or 314a to accommodate adjacent tubes 312. The spaces 316 are filled with light water as are the tubes 314 in which the level is varied to control reactivity. In alternative forms, not shown, the magnesium oxide may be replaced by lead and reactivity control is effected by the adjustment of water level in tubes separate from the fuel elements. In a further embodiment, separate lead or magnesium blocks are mounted between the fuel tubes and space between the tubes and blocks fitted with light water. Reactivity control is effected by adjustment of the water level in passages within blocks. Specifications 909,637, 910,515 and 926, 616 are referred to.
GB21221/59A 1959-06-19 1959-06-19 Improvements in or relating to nuclear reactors Expired GB948909A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB21221/59A GB948909A (en) 1959-06-19 1959-06-19 Improvements in or relating to nuclear reactors
US36371A US3146172A (en) 1959-06-19 1960-06-15 Moderator for nuclear reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21221/59A GB948909A (en) 1959-06-19 1959-06-19 Improvements in or relating to nuclear reactors

Publications (1)

Publication Number Publication Date
GB948909A true GB948909A (en) 1964-02-05

Family

ID=10159234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21221/59A Expired GB948909A (en) 1959-06-19 1959-06-19 Improvements in or relating to nuclear reactors

Country Status (2)

Country Link
US (1) US3146172A (en)
GB (1) GB948909A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320614A1 (en) * 1975-08-04 1977-03-04 Gen Electric Neutron detectors in nuclear reactor with liquid moderator - detector housings being made of material with low neutron moderating power
US4123328A (en) * 1976-09-15 1978-10-31 Institute Of Nuclear Energy Research, Atomic Energy Council Utilization of heavy elements in thermal and epithermal reactors

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1029485A (en) * 1963-10-21 1966-05-11 Soc Anglo Belge Vulcain Sa Improvements in or relating to nuclear reactors
US4413772A (en) * 1979-09-10 1983-11-08 E. I. Du Pont De Nemours And Company Apparatus for centrifugal separation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810689A (en) * 1945-11-06 1957-10-22 Eugene P Wigner Fluid moderated reactor
US2825689A (en) * 1946-04-25 1958-03-04 Szilard Leo Neutronic reactor and fuel element therefor
US3093563A (en) * 1953-04-30 1963-06-11 John R Menke Composite neutronic reactor
BE565765A (en) * 1957-03-19
DE1251878B (en) * 1957-05-01 1900-01-01
BE576979A (en) * 1958-04-04
US2977297A (en) * 1958-09-02 1961-03-28 Ersel A Evans Reactor fuel assembly
BE586969A (en) * 1959-01-29

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320614A1 (en) * 1975-08-04 1977-03-04 Gen Electric Neutron detectors in nuclear reactor with liquid moderator - detector housings being made of material with low neutron moderating power
US4123328A (en) * 1976-09-15 1978-10-31 Institute Of Nuclear Energy Research, Atomic Energy Council Utilization of heavy elements in thermal and epithermal reactors

Also Published As

Publication number Publication date
US3146172A (en) 1964-08-25

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